CBSE ADDA

Class viii    CHAPTER -4      MATERIALS : METALS AND NON METALS 1) Occurrence of metals and non metals :- •Out of the 92 naturally occuringelements 70 are metals and about 22 are nonmetals. Some elements show properties of both metals and non metals. They are called metalloids. •Only some metals like gold, silver, platinum etc are found in the free state. Most metals are found in the combined states as oxides, sulphides, carbonates, silicates etc. •Some non metals are found in the free state like helium, neon, argon etc. and some are found in free and combined states like sulphur, phosphorus etc. 2) Metallurgy :- •Metallurgy:-is science of extraction of metals from their ores and their purification. •Minerals:-are naturally occuringsubstances containing one or more elements or their compounds. •Ore:-is a mineral from which one or more metals can be extracted profitably. •Metallurgical processes:-consists of three main steps. They are :-i) Concentration of the ore ii

Bihar Teacher Eligibility Test 2011 BTET 2011 State Council of Educational Research and Training Bihar, Patna has published the application to apply for teacher eligibility test exam ,2011. State government has announced that there will be 3 lakh teachers will be recruited on the basis of this TET exam.  Application form for Bihar TET exam 2011 will be available from 11.07.2011 to 23.07.2011. Date of form submit – 28.07.2011 to 06.08.2011 The application is available in office of District Education Officer in each district of Bihar only. For get application you have to submit Rs. 100/-( Rs. 50/- for SC/ST) in cash to office of DEO. The exam may be conduct in month of August 2011. The application form will be sell in 20 places in each district. Application form will be sell in District education office, SDO office, and high schools. Application should be submitted in same district from where you purchased the application from. Eligibility for apply to Bihar TET exam 2011 ( 1

Bihar Teacher Eligibility Test 2011 BTET 2011 State Council of Educational Research and Training Bihar, Patna has published the application to apply for teacher eligibility test exam ,2011. State government has announced that there will be 3 lakh teachers will be recruited on the basis of this TET exam.  Application form for Bihar TET exam 2011 will be available from 11.07.2011 to 23.07.2011. Date of form submit – 28.07.2011 to 06.08.2011 The application is available in office of District Education Officer in each district of Bihar only. For get application you have to submit Rs. 100/-( Rs. 50/- for SC/ST) in cash to office of DEO. The exam may be conduct in month of August 2011. The application form will be sell in 20 places in each district. Application form will be sell in District education office, SDO office, and high schools. Application should be submitted in same district from where you purchased the application from. Eligibility for apply to Bihar TET exam 2011 ( 1

Published on July 20, 2011 in Times of India. School Post Subject Qualificatio Contact Address  Shanti Gyan Niketan PGT Chemistry CBSE Norms  Goyla (Dwarka) Near Sector-19, New Delhi – 110071 Ph:-25316971, 25316973,32216972Website: www. shantigyanniketan .com E-mail:  sgn@ shantigyanniketan .com Latest by July 31,2011 TGT Social Studies, Hindi ST. Teresa School TGT Social Science CBSE Norms Shakti Khand – II Indirapuram,  Ghaziabad Send your CV with Photo within 3 days stteresaschool. indirapuram@ gmail.com Delhi Public School (Jammu) VP Master’s Degree in any discipline with B.Ed. 10 yrs teaching Exp + 3-5 yrs Administrative exp S.S. Sodhi (Director) C-6/6297, Vasant Kunj, New Delhi 110070 HM PGT English, Computer Science, History & Geography Master’s Degree in subject concerned with B.Ed. 3-5 yrs exp. TGT English, Maths, Hindi, French